Home / 217,711.47-326,563.80-153,403.74

Finding the Fourth Proportional to 217,711.47, 326,563.80 and 153,403.74

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Solution

The fourth proportional to 217,711.47, 326,563.80 and 153,403.74 is: 230,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,711.47 : 326,563.80 = 153,403.74 : x
  2. Step 2: Convert to fraction form
    217,711.47/326,563.80 = 153,403.74/x
  3. Step 3: Cross multiply
    217,711.47x = 326,563.80 × 153,403.74
  4. Step 4: Simplify right side
    217,711.47x = 50,096,108,268.61
  5. Step 5: Solve for x
    x = 50,096,108,268.61/217,711.47
  6. Step 6: Final answer
    x = 230,103.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.